package wxy.studentmanage.service;

import wxy.studentmanage.bean.Grade;

import java.util.List;

public interface GradeService {
    List<Grade> allGrade();


    int addGrade(Grade grade);

    int deleteGradeById(int wxy_id);

    Grade queryGradeById(int wxy_id);

    int updateGrade(Grade grade);
}
